process of visual perception system. Flashcards
what is visual perception?
visual perception is a biological and psychological process.
- some elements of visual perception are the same but what we see/think differs between individuals
what comes first in the process, sensation or perception?
sensation, then perception
what is the sequence of the process?
reception, transduction, transmission, interpretation, organisation, selection.
what is reception?
the sensory information is received.
- process of detecting and responding to incoming sensory information.
- rods + cones detect/respond to light.
what is transduction?
the information is converted into a neural impulse.
- process of which the receptors change the energy of the detected sensory info into a form that can travel along the neurons to the bran as action potentials (electrical impulses)
- if there wasnβt this stage the sensory info would not travel past the receptors.
what is transmission?
the information is sent to the brain for perceptual processing.
- process of sending the sensory info to relevant areas of the brain via the thalamus, primary visual cortex where info is interpreted.
what is selection?
certain sensory stimuli or their features are attended, the other features are ignored.
what is organisation?
the selected features of sensory stimuli are regrouped so that they are cohesively arranged.
what is interpretation?
the now organised sensory information is understood in a way that depends on the meaning that is assigned to it.
- process where incoming sensory info is given meaning so that it can be understood.
- bringing together this info with existing knowledge to make sense of sensory input.
- includes info we have learnt/stored in our memories, current motivations, emotional states and the situation the perpetual experience is taking place.
what is the individual still not consciously aware of the sensory stimuli?
after transmission (label), but it would be throughout the process.
when does the individual gain conscious awareness of the sensory stimuli
after the process, after interpretation.
what is the thalamus?
relay station for incoming motor movement, in the primary cortex.
